
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>

<html>
<head>

    <title>Title</title>
    <script src="js/jquery-3.3.1.js"></script>
</head>
<body>
<h2>Hello World!</h2>


<a href="book/demo1">练习一</a>
</body>

</html>
